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Woodward 8245-012
Product Overview
A linear hydraulic actuator designed for fuel rack or throttle valve control in diesel and gas engines. It operates using a torque motor to regulate hydraulic flow, driving a double-acting servo piston to provide precise linear motion. The actuator requires an external hydraulic power supply and is commonly paired with Woodward electronic speed controllers. Its rugged construction and sealed design ensure reliable operation in high-vibration, oil-rich environments.
Detailed content
Technical Specifications
- Hydraulic Supply Pressure: 6.9–20.7 bar (100–300 psi)
- Control Signal: 4–20 mA DC (single or dual coil)
- Output Stroke: 25 mm (1.0 inch) linear travel
- Force Output: 1112 N (250 lbf) maximum
- Response Time: <100 ms full stroke
- Position Feedback: Integrated mechanical feedback linkage
- Operating Temperature: -40 °C to +85 °C
- Weight: 3.2 kg
Functional Characteristics
- Precise hydraulic positioning with mechanical feedback
- Single or dual coil torque motor options for redundancy
- Factory-calibrated for fail-safe (minimum fuel) on signal loss
- Sealed bearings and corrosion-resistant housing
- Compact flange-mount design for engine installation
- Compatible with all Woodward 2301A/723 series speed controllers
Application Scenarios
Large industrial diesel generators, marine propulsion engines, gas turbine fuel control systems, petrochemical compressor drives, and heavy-duty construction machinery engines.
